STRIP - ALLOY 316Ti STAINLESS STEEL
UNS S31635
EN-DIN 1.4571
DESCRIPTION
Type 316Ti is a titanium stabilized version of Type 316 molybdenum-bearing austenitic stainless steel. The Type 316 alloys are more resistant to general corrosion and pitting/crevice corrosion than the conventional chromium-nickel austenitic stainless steels such as Type 304. They also offer higher creep, stress-rupture and tensile strength at elevated temperature. Type 316 stainless steel can be susceptible to sensitization – the formation of grain boundary chromium carbides at temperatures between approximately 900 and 1500 °F (425 to 815 °C) – which can result in rapid corrosion. Resistance to sensitization is achieved in Type 316Ti with titanium additions to stabilize the structure against chromium carbide precipitation, which is the source of sensitization. This stabilization is achieved by an intermediate temperature heat treatment, during which the titanium reacts with carbon to form titanium carbides. This significantly reduces susceptibility to sensitization in service by limiting the formation of chromium carbides. Thus, the alloy can be used for extended periods at elevated temperatures without compromising its corrosion resistance.
Applicable Specifications
ASME SA-240, ASTM A240
Nominal Composition
C: .080 max
Mn: 2.0 max
P: 0.045 max
S: 0.030 max
Si: 0.75 max
Cr: 16.0 – 18.0
Ni: 10.0 – 14.0
Mo: 2.00 – 3.00
Ti: 5X(C+N) – 0.70
N: 0.10 max
Fe: Balance
Physical Properties
Density:
0.29 lb./in3 (7.99 g/cm3)
Modulus of Elasticity (E):
At 70°F (20°C): 28.0 x 103 ksi in tension
193 x 103 MPa in tension
Coefficient of Expansion:
9.2 x 10−6 microinches/in.-°F (32-212°F)
16.5 µm/m-°C (0-100°C)
Electrical Resistivity:
28.4 µ ohm.in (72 μ ohm.cm)
Thermal Conductivity:
8.4 Btu-in./ft.2hr.-°F (100°C)
14.6 W/m-K (100°C)
Typical Mechanical Properties – Typical Room Temperature Mechanical Properties
Typical mechanical properties are based on ATI source, ASTM A240
Annealed
- Tensile Strength (UTS): 90 ksi (620 MPa)
- 0.2% YS: 36 ksi (248 MPa)
- Elongation% in 2” (50.8 mm): 54
- Hardness Rockwell: 76 HRBW
For further information Contact:
CONTACT US
Phone: 1.888.843.2350
Elgiloy Specialty Metals – Strip Products
1565 Fleetwood Dr
Elgin, IL 60123 USA
Limitation of Liability and Disclaimer of Warranty:
- The content in these data sheets is provided primarily by third-party melting mills and is provided for reference only. It is not intended for engineering or design.
- Applications may be discussed, however, Elgiloy Specialty Metals, a Division of Combined Metals Company LLC, does not recommend or endorse any material for any particular end use or application.
- The data included in this data sheet are typical values and may vary.
- Elgiloy Specialty Metals, a Division of Combined Metals Company LLC, makes no representations or warranties, express or implied, as to the accuracy, completeness, condition, suitability, performance, fitness for a particular purpose, or merchantability of any information contained in any data sheet.
In no event will Elgiloy Specialty Metals, a Division of Combined Metals Company LLC, be liable for any damages whatsoever arising from the use of the information included in the data sheets.
